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%I #15 May 31 2021 21:30:24
%S 0,1,2,-1,3,4,-2,-3,6,-4,5,7,-5,8,-6,-7,9,10,-8,11,-10,12,-9,-11,13,
%T 14,-13,15,-12,-15,17,16,-14,-17,18,19,-16,20,-19,21,-23,22,-18,23,
%U -20,-21,24,-22,25,26,-24,27,-26,28,-25,-27,32,29,-28,30,-29,31,-37,34,-36,33,-39,35,-33
%N Conjectured permutation of the integers using Rule 2 with A131393(1)=1.
%C Rule 2 is given at A131393. Conjecture: A131394 is a permutation of the integers.
%H <a href="/A131394/b131394.txt">Table of n, a(n) for n = 1..69</a>
%F This is the sequence d( ) in the formula for A131393.
%e See A131393.
%Y Cf. A131388, A131389, A131390, A131391, A131392, A131393, A131395, A131396, A131397.
%K sign,unkn
%O 1,3
%A _Clark Kimberling_, Jul 05 2007